Studies about the composition and diversity of microbial community in the Rare Earth Elements-rich muds are limited. In this research, we conducted a characterization for the composition and diversity of bacterial and archaeal communities from rare earth elements-rich gravity core sediment at approximately 4800 meters deep in the Indian Ocean by Illumina high-throughput sequencing targeting 16S rRNA genes. The results showed that the most abundant bacteria were Proteobacteria, followed by Firmicutes and Actinobacteria.
View Article and Find Full Text PDFBacterial strain I507 was isolated from the central Indian Ocean and may be a potential novel species, according to the 16S rRNA gene sequence. Here, we present its complete genome sequence and expect that it will provide researchers with valuable information to further understand its classification and function in the future.
View Article and Find Full Text PDFPurpose: To explore the feasibility of a novel computer color-matching (CCM) system based on the improved back-propagation neural network (BPNN) model by comparing it with the traditional visual method.
Material And Methods: Forty-three metal-ceramic specimens were fabricated by proportionally mixing porcelain powders. Thirty-nine specimens were randomly selected to train the BPNN model, while the remaining four specimens were used to test and calibrate the model.
J Prosthet Dent
December 2014
Statement Of Problem: Color errors associated with current shade guides and problems with color selection and duplication are still challenging for restorative dentists.
Purpose: The purpose of this study was to evaluate an optimized shade guide for visual shade duplication.
Material And Methods: Color distributions (L*, a*, and b*) of the maxillary left central incisors of 236 participants, whose ages ranged from 20 to 60, were measured with a spectrophotometer.